LM5574-Q1

활성

75V, 0.5A 스텝다운 스위칭 레귤레이터

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데이터 시트

document-pdfAcrobat LM5574-Q1 75V, 0.5A, Automotive, Step-Down Switching Regulator datasheet (Rev. D) (영어) PDF | HTML

LM5574-Q1

활성

데이터 시트

지금 주문하기

제품 상세 정보

Rating

Automotive

Topology

Buck

Iout (max) (A)

0.5

Vin (max) (V)

Vin (min) (V)

Vout (max) (V)

Vout (min) (V)

1.23

Features

Enable, Frequency synchronization, Over Current Protection, Soft Start Adjustable, Tracking

Control mode

current mode

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.001

Duty cycle (max) (%)

Rating

Automotive

Topology

Buck

Iout (max) (A)

0.5

Vin (max) (V)

Vin (min) (V)

Vout (max) (V)

Vout (min) (V)

1.23

Features

Enable, Frequency synchronization, Over Current Protection, Soft Start Adjustable, Tracking

Control mode

current mode

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.001

Duty cycle (max) (%)

TSSOP (PW)

32 mm² (5 mm × 6.4 mm)

LM5574-Q1 is an automotive grade product that is AEC-Q100 grade qualified
–40°C to + 150°C operating junction temperature
Integrated 75V, 750mΩ N-Channel MOSFET
Ultra-wide input voltage range from 6V to 75V
Adjustable output voltage as low as 1.225V
1.5% feedback reference accuracy
Operating frequency adjustable between 50kHz and 500kHz with single resistor
Controller or peripheral frequency synchronization
Adjustable soft start
Emulated current mode control architecture
Wide bandwidth error amplifier
Built-in protection
Package:
- TSSOP-16
Create a custom design using the LM5574-Q1 with the WEBENCH Power Designer

LM5574-Q1 is an automotive grade product that is AEC-Q100 grade qualified
–40°C to + 150°C operating junction temperature
Integrated 75V, 750mΩ N-Channel MOSFET
Ultra-wide input voltage range from 6V to 75V
Adjustable output voltage as low as 1.225V
1.5% feedback reference accuracy
Operating frequency adjustable between 50kHz and 500kHz with single resistor
Controller or peripheral frequency synchronization
Adjustable soft start
Emulated current mode control architecture
Wide bandwidth error amplifier
Built-in protection
Package:
- TSSOP-16
Create a custom design using the LM5574-Q1 with the WEBENCH Power Designer

The LM5574-Q1 is an easy-to-use, buck regulator that allows design engineers to design and optimize a robust power supply using a minimum set of components. Operating with an input voltage range of 6V to 75V, the LM5574-Q1 delivers 0.5A of continuous output current with an integrated 750mΩ N-Channel MOSFET. The regulator uses an Emulated Current Mode architecture which provides inherent line regulation, tight load transient response, and ease-of-loop compensation without the usual limitation of low-duty cycles associated with current mode regulators. The operating frequency is adjustable from 50kHz to 500kHz to allow optimization of size and efficiency. To reduce EMI, a frequency synchronization pin allows multiple ICs from the LM(2)557x family to self-synchronize or to synchronize to an external clock. The LM5574-Q1 makes sure of robustness with cycle-by-cycle current limit, short-circuit protection, thermal shutdown, and remote shutdown. The device is available in a 16-pin TSSOP package. The LM5574-Q1 is supported by the full suite of WEBENCH online design tools.

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기타 DC/DC 컨버터 찾기

다운로드 스크립트와 함께 비디오 보기 비디오

관심 가지실만한 유사 제품

open-in-new

대안 비교

다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능.

LMR38010-Q1

활성

차량용 SIMPLE SWITCHER ® 4.2V~80V, 1A 동기식 벅 컨버터 Smaller footprint, lower EMI, lower IQ, higher efficiency and spread spectrum.

기술 자료

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20개 모두 보기

상위 문서	유형	직함	형식 옵션	날짜
*	데이터 시트	LM5574-Q1 75V, 0.5A, Automotive, Step-Down Switching Regulator datasheet (Rev. D)	PDF \| HTML	2025. 4. 25
	애플리케이션 노트	Semiconductor and IC Package Thermal Metrics (Rev. D)	PDF \| HTML	2024. 3. 25
	백서	Overcoming Challenges in Designing Step-Dwn Reg Apps w/40V Input Voltage (Rev. A)		2018. 7. 3
	애플리케이션 노트	Cost-Effective Transformerless Offline Supply for Light Load Applications (Rev. A)		2015. 6. 16
	애플리케이션 노트	Cap Drop Offline Supply for E-Meters		2015. 6. 16
	애플리케이션 노트	Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A)		2014. 9. 12
	애플리케이션 노트	AN-1997 Error Amplifier Limitations in High-Performance Regulator Applications (Rev. A)		2013. 5. 6
	애플리케이션 노트	AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C)		2013. 4. 24
	애플리케이션 노트	AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A)		2013. 4. 23
	애플리케이션 노트	AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A)		2013. 4. 23
	애플리케이션 노트	AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C)		2013. 4. 23
	애플리케이션 노트	AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C)		2013. 4. 23
	애플리케이션 노트	AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A)		2013. 4. 23
	애플리케이션 노트	AN-1197 Selecting Inductors for Buck Converters (Rev. B)		2013. 4. 23
	애플리케이션 노트	AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C)		2013. 4. 23
	애플리케이션 노트	AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B)		2013. 4. 23
	애플리케이션 노트	Understanding and Applying Current-Mode Control Theory		2007. 8. 19
	애플리케이션 노트	Input and Output Capacitor Selection		2005. 9. 19
	추가 자료	SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations		2005. 7. 12
	애플리케이션 노트	AN-643 EMI/RFI Board Design (Rev. B)		2004. 5. 3

설계 및 개발

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평가 보드

LM5574EVAL — 75V, 0.5A 스텝다운 스위칭 레귤레이터 평가 모듈

The LM5574 evaluation board is designed to provide the design engineer with a fully functional power converter based on Emulated Current Mode Control to evaluate the LM5574 regulator IC. The evaluation board provides a 5V output with a 0.5A current capability. The ultra-wide input voltage ranges (...)

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